baber/WOPTO huggingface dataset:
Patent GB-911221-A (GB)
Title: Furan derivatives
IPC: C07D307/52
Filed: 1959-05-06
Abstract: A sheet of resin, formed by mixing 2,5-bis(aminomethyl)-furan with bis-diglycidoxy diphenyl propane at room temperature, is postcured at 100 DEG C. for eight hours to give a stiff brown sheet suitable for electrical insulation or laminating adhesives.ALSO:The invention comprises the compounds:-2,5-bis(aminomethyl)-furan, 2,5-bis(dimethylaminomethyl)-furan, 5-methyl-N,N-diethylfurfurylamine and 2,5-bis(phthalimidomethyl)furan.  2,5-Bis(aminomethyl)-furan is prepared by refluxing 2,5-bis(phthalimidomethyl)-furan with hydrazine in ethanol.  This compound may be subsequently converted into the dipicrate with aqueous picric acid or into 2,5-bis(acetamidomethyl)-furan by treatment with acetic anhydride in methanol.  2,5-Bis(dimethylaminomethyl)-furan is prepared by treating 2,5-bis(chloromethyl)-furan or 2,5-bis(bromo-methyl) -furan with dimethylamine, and may subsequently be converted into the dipicrate. 5-Methyl-N, N-diethylfurfurylamine is prepared by refluxing diethylamine with 2-methyl-5-bromomethyl -furan, and may subsequently be converted into the picrate or the hydrochloride. The hydrochloride may be oxidized with concentrated nitric acid to yield 2,5-furan dicarboxylic acid. 2,5-Bis(phthalimidomethyl)-furan is prepared by treating 2,5-bis(bromo-methyl) -furan with potassium phthalimide. 2,5-Bis(chloromethyl)-furan is prepared by treating 2,5-furandimethanol with thionyl chloride. 2,5-Bis(bromomethyl)-furan and 2-methyl-5-bromomethyl-furan are prepared by treating 2,5-dimethylfuran with N-bromosuccinimide.
Patent GB-1534981-A (GB)
Title: Thromboxane analogues
IPC: C07D309/10
Filed: 1977-04-14
Abstract: 1534981 Silylated tetrahydropyran compounds UPJOHN CO 14 April 1977 [20 Aug 1976 (2)] 15549/77 Heading C3S [Also in Division C2] 6α - Methoxy - 4α - trimethylsilyloxy - 2#- [3(RS) - 3 - tetrahydropyran - 2<SP>1</SP> - yloxy - trans- 1 - octenyl] - 3α - (3 - oxopropyl)tetrahydropyran is prepared by oxidizing 6α-methoxy-4α-trimethylsilyloxy - 2# - [3(RS) - 3 - tetrahydropyran - 2<SP>1</SP>- yloxy - trans - 1- octenyl] - 3α - (3- trimethylsilyloxypropyl)-tetrahydropyran.
Patent GB-517765-A (GB)
Title: Improvements in or relating to colliery trailing cables
IPC: H01B7/36
Filed: 1938-05-25
Abstract: 517,765. Electric cables. LIVERPOOL ELECTRIC CABLE CO., Ltd., and FROST, J. T. May 25, 1938, No. 15573. [Class 36] A trailing cable for use in collieries has incorporated in the outer sheath, prior to vulcanization, an identification number or code of rubber or other material which is fixed in position by the vulcanization and is visible for inspection. The Colouring of the identification material is in contrast with the colouring of the sheath. The identification number or code may be arranged below, flush with, or above the surface of the sheathing. Specification 387,626 is referred to.
Patent GB-992751-A (GB)
Title: Phosphorus-and sulfur-containing polymeric products
IPC: C10M159/12
Filed: 1962-04-24
Abstract: An organic phosphorus and sulphur containing product is obtained by reacting at above 130 DEG  C. a chlorinated olefin polymer and a phosphorus sulphide with/without sulphur, then hydrolysing and finally neutralizing using an alkali metal or alkaline earth metal base, e.g. an oxide, hydroxide, carbonate or sulphide (such as calcium or barium oxide or hydroxide, or sodium hydroxide). Hydrolysis may be effected with water or steam, and during neutralization, carbonation may also be carried out.  The products find application as detergent additives in lubricant and fuel oil compositions.ALSO:A detergent additive for hydrocarbon lubricants and fuel oils (e.g. gasoline and burner fuel oils) comprises the organic phosphorus and sulphur containing product obtained by reacting at above 130 DEG  C., a chlorinated olefin polymer and a phosphorus sulphide, with/without sulphur, followed by hydrolysing, neutralizing and optionally carbonating the resulting intermediate. Hydrolysis may be effected with water or steam and neutralization is carried out with an alkali metal or alkaline earth metal base, e.g. an oxide, hydroxide, carbonate or sulphide (such as calcium or barium oxide or hydroxide, or sodium hydroxide).  Conventional oil additives also may be present, and in connection with lubricants the following additives are mentioned: chlorinated wax, dibutyl tetrasulphide, dibenzyl disulphide, cyclohexyl trisulphide, sulphurized sperm oil, sulphurized methyl oleate, sulphurized dipentene, P2S5-turpentine reaction product, zinc dihexylphosphorodithioate, polybutenes, polyalkylmetharylates, alkenyl succinic acid/NH3 or amine reaction product and alkyl methacrylate/alkylaminoalkyl methacrylate copolymer.
Patent GB-129350-A (GB)
Title: Improvements in Mechanism for Transmitting Motion from Two or More Sources of Motion to a Recipient Device.
IPC: H02K7/18
Filed: 1917-10-27
Abstract: 129,350. Evershed & Vignoles, and Clark, W. Oct. 27, 1917. Hand driving-mechanism. - Hand and air driven gears are each connected by a free-wheel clutch to a driven shaft, so that either mav drive independently of the other. The armature shaft c of the generator of a wireless installation carried on an aircraft is driven, when the craft is flying, by an air-propeller b, and, when at rest, by a flexible shaft e driven by hand-driven gearing. The propeller boss h and a sleeve l secured to the shaft e are connected to the shaft c by one-way clutches i, n, respectively, so that, when either source of power is driving, the other is unaffected.
Patent GB-557671-A (GB)
Title: Tubular heat exchanger
IPC: F28D7/16
Filed: 1942-11-09
Abstract: 557,671. Tubular heat-exchangers. AKT.-GES FUR TECHNISCHE STUDIEN. Nov. 9, 1942, No. 15803. Convention date, Nov. 8, 1941. [Class 64 (iii)] In a heat-exchanger having tubes A of small diameter in relation to their length, the tubes are connected in groups to plates 10 at the flared ends of funnel-shaped junction pieces 6 which at their narrow ends are welded or beaded in the tube plates 8, 9 of the exchanger.
Patent GB-185821-A (GB)
Title: Improvements in or relating to the construction of ships for use with aerial machines
IPC: B63B27/16
Filed: 1921-06-08
Abstract: 185,821. Fairey Aviation Co., Ltd., and Fairey, C. R. June 8, 1921. Vessels for carrying aircraft.-An aircraftcarrying vessel is constructed with a flat counter and an overhanging slipway at the stern, thus enabling aircraft to approach the mother vessel in the comparatively smooth water in the wake of the ship and to be run up the slipway and be brought aboard by any suitable means. In one form, the slipway 23 is run down the inclined guide-way 37 under the control of cables 42 attached to the slip-way and passing over pulleys 43, 44, the latter being driven by a reversible winch 45. The slip-way is provided with a buoyancy tank 50 connected by air pipes 53, 54 with a blower 55, non-return air valves 51, 52 controlling the air pressure within the tank. In modifications, the tank is replaced by adjustable hydrovanes or inclined slots are cut the body of the slip-way, and the flow of water therethrough being controlled by angularly adjustable cover plates. The forward launching deck is provided with a catapult apparatus.
Patent GB-697760-A (GB)
Title: Improvements in and relating to portable electric lights
IPC: F21L4/00
Filed: 1951-07-05
Abstract: 697,760. Portable electric lights. HILL, T. June 24, 1952 [July 5, 1951], No. 15935/51. Class 75(iii) A portable electric light comprises a battery-supporting base 4 having inverted U-shaped tubular steel end members 5, 6 braced together at the top by a tubular steel handle 7, one 5 of said end members having an adjustable lamp support 17, 18 and supporting a board or cross-member 8 carrying battery connection terminals, a fuse 11 and sockets 12. As shown the adjustable lamp support comprises a vertical extension 17, on one limb of the inverted U-shaped end member 5, which telescopically and rotatably receives a rod 18 to the top of which a lamp-carrying bracket 20 is adjustably pivoted on a horizontal bolt 21. The board 8 has two sockets 12 to supply a switch lamp fitting 16 on the support 18, 19, and a trailing-lead lamp 14. The base 4, which may be in grid form, may be mounted on wheels or rollers.
Patent GB-1418274-A (GB)
Title: Piezoelectrically operated pump
IPC: F04B43/04
Filed: 1974-04-10
Abstract: 1418274 Drop delivering apparatus ORIGINAL-ODHNER AB 10 April 1974 [25 April 1973] 15976/74 Heading B8N [Also in Division F1] A piezoelectrically-operated device for producing liquid drops in rapid succession comprises piezoelectric crystals 10 operating in radial mode of contraction secured, e.g. by soldering, or gluing, to a diaphragm 24, e.g. of metal, defining pumping chambers 20 having capillary outlets 17, the diaphragm being circumferentially secured, e.g. by soldering, gluing or clamping, to a housing 21 on its side remote from the pumping chambers. Electrical connections are made to the crystals at 18 and to the housing, conductive glue being used for glued joints between the crystals, diaphragm and housing.
Patent GB-1365849-A (GB)
Title: Benzothiopyran derivatives
IPC: C07D409/12
Filed: 1973-04-04
Abstract: 1365849 Substituted 4-hydroxy-1-benzothiopyran-3-carboxamide-1,1-dioxides WARNERLAMBERT CO 4 April 1973 [28 April 1972] 16043/73 Heading C2C Novel benzothiopyran - 3 - carboxamides of Formula I wherein R 1  is an optionally substituted heterocyclic aromatic radical, R 2  is H or halogen or an alkyl, aryl, aralkyl, alkoxy, cyano, nitro or trifluoromethyl radical, and the salts thereof may be prepared by reacting a compound of Formula II in which R 2  is as above and R 3  is an alkyl or aryl radical with a compound of formula in which R 1  is as defined above. In exemplified compounds R 2  is hydrogen and R 1  is 2-pyridyl, 4-, 5- & 6-methyl-2-pyridyl, 5- chloro-2-pyridyl, 5-nitro-2-pyridyl, 2-thiazolyl and 5-methyl-3-isoxazolyl. Pharmaceutical compositions having antiinflammatory activity for oral, injection or parenteral administration comprise at least one compound of Formula I together with a solid or liquid pharmaceutical diluent or carrier.
Patent GB-203075-A (GB)
Title: Improvements relating to threshing machines
IPC: A01F7/06
Filed: 1922-06-09
Abstract: 203,075. Nadal y Llad¾, M. June 9, 1922. Thrashing-machines.-The beater of a thrashing-machine is formed by a cylinder 13 having a series of arms 15 arranged in helical alignment, the outer extremities of these arms extending to combs 17 - - 20 secured to the machine as shown. The separated grain falls on to perforated baseplates 31 and thence passes to the ordinary screens of the thrashing-machine. In the form shown, two sections, each with a separate beater are provided, the beaters having arms 15 arranged in contrary helices and being driven in the same direction, or having arms arranged in similar helices, and being driven in the contrary directions, so as to cause the material to pass from one section to the other and through the machine, and through an aperture in a partition 27 which may be controlled by a sliding shutter so as to vary the length of the straw passing through it. The arms are secured to the cylinder as shown in Fig. 3. Each arm has a stop 9 which bears on the cylinder and a bent part 10 which traverses the cylinder and is secured by a nut 12.
Patent GB-1418197-A (GB)
Title: Commutator segments of electric machines
IPC: H01R39/04
Filed: 1973-04-05
Abstract: 1418197 Making strips for commutator segments; casting composite articles S I BERMAN and P M NIKIFOROV 5 April 1973 16244/73 Headings B3A and B3F [Also in Divisions E1 and H2] A strip for making commutator segments (Fig. 1, not shown) comprises, in cross-section, an outer copper part 1 (Fig. 2) and an inner steel part 2, and is formed by suspending a rounded steel core 2 (Fig. 3) in a mould (not shown) into which molten copper is poured in an atmosphere of CO 2 , the mould being shaped such that an ingot as in Fig. 3 is produced on cooling. To ensure good bonding between the copper and the steel, the mould is maintained above the fusion point of copper for 5-12 minutes in order to form a diffusion layer of copper in the steel. The ingot is then subjected to hot and cold press shaping in order to produce the trapezium crosssection strip (Fig. 2) from which the commutator segments are cut.
Patent GB-617429-A (GB)
Title: Improvements in weighing machines
IPC: G01G5/04
Filed: 1946-05-29
Abstract: 617.429. Weighing-apparatus. SAUNDERS, F. S. May 29, 1946, No. 16343. Addition to 564,287. [Class 143] The hydrostatic weighing-apparatus of the parent Specification is modified by providing two axially spaced guiding means for the load-carrying plunger 5 which works in a bore in the cover section 2 of a two-part liquid-filled receptacle, one such guiding means being a flexible ring 6 secured at its inner and outer edges, e.g. by ring nuts 8 and 7, to the plunger 5 and cover 2. As shown, the other guiding means is a depending annulus 9 in the cover 2 engaged by an enlarged lower end 13 of the plunger. An elastic sealing diaphragm 12 fits over the end of the annulus 9 and covers the plunger. The receptacle has a filling opening at 15, and is connected to a weight-indicating pressure gauge 14.
Patent GB-1511502-A (GB)
Title: Apparatus for separating superposed sheets and feeding said separated sheets
IPC: B65H3/52
Filed: 1975-04-21
Abstract: 1511502 Separating sheets XEROX CORP 21 April 1975 [26 April 1974] 16465/75 Heading B8R A retard member for preventing separation of. more than one sheet in a sheet feeding apparatus comprises a friction surface formed of a microcellular elastomer of at least 25 durometer Shore A hardness. The separator may be an endless belt and may co-operate with the retarding member to form a throat. The retarding member may be a roller, belt, shoe or pad. A list of suitable materials is given.
Patent GB-504510-A (GB)
Title: Pressure relaxing device for portable props
IPC: E21D15/60
Filed: 1938-06-02
Abstract: 504,510. Chocks for mines. GEWERKSCHAFT CHRISTINE. June 2, 1938, No. 16528. Convention date, March 14. [Class 20 (ii)] A pressure - releasing device for props or chocks comprises co - operating members including a tiltable supporting member and a slidable wedge member which is arranged below the tiltable member. The tiltable member 2 is provided with an upper lip 6 and an inclined forward surface 5b, and has a sliding-pin connection 7 to the sides of the fixed frame box-member 1. Its lower surface is inclined and in the supporting position rests upon a slidable wedge 3, which has an extension 9 adapted to be retained in position by a pivoted hook 12 and a lug 13. Release of the hook by a handle 14 allows the superincumbent weight on the supporting member to force the wedge 3 outwardly and the member downwardly until the inclined edge 5b contacts with the upper edge of the box, whereby the tiltable member with the wood support carried by it are thrown outwardly. The outer surface 4 of the tiltable member is so shaped that in the dismantled position, the upper surface of the tiltable member forms a continuation of the upper surface of the sliding wedge. Further wedge portions 16 are fixed on a frame member 15 to deflect the falling supports and debris laterally.
Patent GB-1430412-A (GB)
Title: Ink compositions
IPC: C09D11/00
Filed: 1973-04-06
Abstract: 1430412 Ink SAKURA COLOR PRODUCTS CORP 6 April 1973 [10 April 1972] 16552/73 Heading C4A [Also in Division C3] An ink composition comprises an aliphatic hydrocarbon solvent, a resinous binder and a dye modified to increase its solubility in aliphatic hydrocarbons. The dye is one containing one or more carboxylate or sulphonate groups, and is modified by reaction with a compound of one of the formulµ   where each of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7  and R 8  is a hydrocarbon radical of 1 to 40 carbon atoms, or is a radical comprising two hydrocarbon groups totalling 2 to 40 carbon atoms linked by a group -O-, -S-, -COO-, -COHN- or -NH-, or is -PO(OR<SP>1</SP>) 2 , where R<SP>1</SP> is an allyl radical of 1 to 15 carbon atoms or an alkenyl radical of 1 to 20 carbon atoms, or one or two (but not all three) or R 6 , R 7 , and R 8  may be hydrogen, provided that the total carbon number of R 1 , R 2 , R 3  and R 4  is in the range 11 to 55 or the total carbon number of R 6 , R, and R 8  is in the range 8 to 40, X is halogen and A is an acid residue. The Specification includes long lists of dyes, modifying agents of Formulµ I, II and III, solvents and resinous binders. The last includes resin derivatives, hydrocarbon polymers and alkyd resins. The dye and modifying agent may be reacted together in aqueous solution (as in Example 1) or in solution in polar organic solvents (as in Examples 2-4), isolated and then dissolved with the binder in the hydrocarbon solvent. Alternatively (as in Example 5), the binder, the modifying agent and the dye may be dissolved successively in that order in the solvent.
Patent GB-420836-A (GB)
Title: Improvements in or relating to the manufacture of artificial leather
IPC: D06N3/00
Filed: 1933-06-09
Abstract: For the manufacture of artificial leather an impregnated paper is coated with a first coat consisting of 4 parts pyroxylin, 4 parts orange shellac, 25 parts denatured alcohol, 22,5 parts ethyl acetate and 2,5 parts butyl acetate, and with two coats of one part pyroxylin, 1,9 parts castor oil, 0,6 parts pigment, 5 parts denatured alcohol, 4,5 parts ethyl acetate and 0,5 parts butyl acetate.
Patent GB-156281-A (GB)
Title: Improvements in or relating to the treatment of flax straws and the like or flax waste or refuse for the extraction of fibres therefrom
IPC: D01C1/02
Filed: 1919-07-02
Abstract: 156,281. Picard, L. July 2, 1919. Breaking and scutching apparatus; carding-engines.-Flax straws and the like and flax waste or refuse are treated mechanically to obtain fibres from them, whilst they are under the influence of hot or warm dried air. Flax straws are passed between a series of breaking-rollers through perforations in which issues a supply of air, which has been specially dried and which is of a temperature of from 35‹ to 40‹ Centigrade. The whole machine is enclosed in a suitable casing. The machine comprises a series of grooved endless aprons a, Fig. 1, with which co-operate fluted crushing-rollers b, b<1>. The ridges of the later cylinders b<1> are made sharper than those of the earlier cylinders b. Heated dried air is supplied through a pipe g and distributed through pipes h, i, e, f to all the cylinders. Valves j and pressure gauges k are provided. A fan is used to ensure efficient circulation of the air. Short straws are treated in a machine which comprises carding-devices in addition to an endless grooved apron m, Fig. 3, and pressure rollers n. The carding-devices consist of a travelling apron m<1> provided with carding-teeth and a co-operating fixed frame o provided with similar teeth. The material is further treated by a carding-cylinder p surrounded by smaller carding-cylinders q. The tow produced is removed by a doffing-comb r, and falls on to a plate s. All parts of the apparatus are supplied with dried air which is distributed in a manner similar to that described with reference to Fig. 1.
Patent GB-641804-A (GB)
Title: Improvements in high pressure reciprocating pumps
Inventor: CAREY FREDERICK HENRY
IPC: F04B1/107
Filed: 1947-06-24
Abstract: 641,804. Revolving cylinder pumps. DOWTY EQUIPMENT, Ltd. June 24, 1947, No. 16683. [Class 102(i)] [Also in Group XXVI] In a revolving radial-cylinder pump, each piston 19 is reciprocated by a slipper 21 engaging an eccentric track 22; each slipper is attached to its piston by a pin 34 and part spherical socket 35 as described in Specification 641,806. To prevent wear of the piston and cylinder due to tilting of the piston by rubbing engagement of the slipper on the track, liquid pressure is applied to localized areas that are spaced apart and in the example illustrated, the pressure is transmitted from the cylinder through port 30 in the piston and also through groove 32 and port 31. Alternatively, the port 30 could be extended 'to replace the provision of port 31 or the port 30 could be replaced by a further port in the cylinder body leading to the same area.
Patent GB-1527208-A (GB)
Title: Directional control valves
IPC: F15B11/05
Filed: 1977-04-21
Abstract: 1527208 Valves COMMERCIAL SHEARING Inc 21 April 1977 [6 May 1976] 16685/77 Heading F2V A pressure compensated directional control valve assembly has a directional control valve 10 comprising a hollow spool 12 which selectively connects work ports 15, 16 with inlet ports 17, 18 or exhaust ports 13, 14 and with a pressure compensating port 33 via passages 22a, 23a, controlled by annular flexible band check valves 22c, 23c. The pressure compensating valve (not shown) is identical with that disclosed in Specifications 1,382,508 and 1,293,550 and the assembly works substantially as described therein.
Patent GB-334241-A (GB)
Title: Improvements in or relating to the cracking of hydrocarbons
IPC: C10G9/40
Filed: 1929-05-30
Abstract: 334,241. Elkington, H. D., (Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij). May 30, 1929. Hydrocarbons are cracked by passing them either in a gaseous or liquid state through molten baths of a non-metallic substance, or a mixture of such substances, which is not decomposed at the temperature of the reaction and which has a melting point below the reaction temperature and a boiling point so far above that temperature that substantially no vapours are formed during the reaction. A fused mixture of eCJui-mole{,ular quantities of barium and calcium chlorides melting about 500‹ C. is preferably employed. Butane passed through a bath of this kind maintained at a temperature of 750‹ C. produced a gas containing 18.5 per cent of propylene and 18.7 per cent of ethylene. The pressure of the butane was just sufficient to overcome the head of liquid. Other suitable salt mixtures are calcium chloride with calcium fluoride, manganese chloride, potassium chloride, or sodium chloride, and potassium chloride with magnesium or sodium chloride. Molten tellurium may also be used, a catalytic action being exercised by this element; the steel of the apparatus must be protected in this ease e.g. by an aluminium lining. When using liquids, these are passed into the molten bath under pressure.
Patent GB-165093-A (GB)
Title: Improvements in anodes for mercury vapour rectifiers
IPC: H01J13/16
Filed: 1921-06-18
Abstract: 165,093. Akt.-Ges. Brown, Boveri, et Cie. June 18, 1920, [Convention date]. Low-pressure metallic-vapour apparatus.- Connection to an anode is made at approximately its lowest point, so as to prevent the arc from creeping up the anode, and the anode has hollow walls in direct contact with a cooling fluid. As shown, the anode is in the form of a hollow iron cylinder a, closed at the lower end c, on to which a leading-in conductor b is screwed, or the cylinder and conductor may be in one piece. The conductor may be of copper and of large section so as to reduce the resistance, and assist cooling. A non- conducting cooling-liquid may be contained in or circulated through the anode. An insulator f is arranged around the anode.
Patent GB-751174-A (GB)
Title: Method of manufacturing wheel discs
IPC: B21D53/26
Filed: 1954-06-09
Abstract: 751,174. Making wheels. SCHMIDT, T. June 9, 1954, No. 16912/54. Class 83 (2). A steel bar is rolled to form a helix, with its inner edge 12 thicker than its outer edge 13 and a length 14, Fig. 2, somewhat less than a complete turn is cut off and its ends 15, 16 welded together to form a conical blank which is pressed to form the disc shown in Fig. 6, having a hub opening 22, an inner mounting flange 21 and a rim supporting flange 23. Bolt holes are punched in the flange 21 and access holes 30 in the intermediate portion 24.